1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ecb5256f3cdc82d60166c8d405db5234c4002b7643431f7d97e135290202fd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/322bc920-0c47-44db-b3e5-421adfafcf0c.json and https://artists.proofprofile.net/proofs/artist/322bc920-0c47-44db-b3e5-421adfafcf0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead937e96957c80dc4f0f7fab4c19059acd1fb74b42c78d7577b06c2ec5c3b5c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42238282.
Immer zieht es mich zu ihr (Let's go, let's go, let's go)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c628234e6f30bc001e5a6c7b5856bb526debd31fd47dc1898d4c787dc4aa982. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42238290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4748019a0c7f04d886db614cf5d73cedd92bbe50417be4fa06e818375052c9a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE280134901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a468b8179c6c0c06a27e9056f5df81f762948331563b24f7be78bd333d907c1. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE280134903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee5464648d74767d1853f3beaa104d000b76f34a5760b1f4306e9afae1bdf10. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE280134906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b8d635852037f6d0ac43a1190c363fb6ad6119c307d850fced15a9b82bc254. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE280134911.
Masterpieces Presents Bill Ramsey: 10 Greatest Hits
Masterpieces Presents Bill Ramsey: 3 Greatest Hits (3 Greatest Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad844f9e3f618e97a51f2b1099bbe81b14f3864d469bace60da9db25f8f35513. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066310390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d54175bb442316a7de010beef57d8fd28d0ea6d3c87c9bc48cde2dcba19c63. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066201810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e911d8363b9b949ab5b7374bc5ab51121b08d220598a68d22c0a5790dcfed2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA346200265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b45b3f443de53eeca701b295d80f0c332a8ebe5d08ad14136593e173305aec. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066201730.
Bill Ramsey singt: Cecilia & Wumba - Tumba - Schokoladeneisverkäufer (vom anderen Stern)
Schlagerdiamanten der 50er Jahre - 50 große Erfolge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc940d047acef160ecd4d86ea510f6cdc311a666fd8c123c91fbc902342459e2e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DER751528701.
100 Deutsche Schlager Hits der 50er und 60er Jahre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a0c0a8e30a9da1212fd4617a2ad1f2463a89e974da38fff5ed6612dc1ec7d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF161483409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e77dbbd0ea815599a6e645550f8cd8e00b5b7b8349b498bb24b2823e9a6f76. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF161483420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0010eeb7db97c344f832322a9bb080a7eaa30e3c7a68479d6dd3e2a9229d28e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF161483401.
50 Schlager Party - und Fetenhits, Vol. 1 (Deutsche Partyschlager - Klassiker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e77dbbd0ea815599a6e645550f8cd8e00b5b7b8349b498bb24b2823e9a6f76. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF161483420.